添加文件大小报表工具
Merge remote-tracking branch 'upstream/dev' into dev
Merge pull request #37 from liaoxuezhi/dev

Dev
优化文件大小报表
Merge pull request #38 from liaoxuezhi/dev

优化文件大小报表
Merge pull request #39 from zhoumm1008/dev

Dev
[bugfix] add comments for core extend files